Printed documents can't use bold/italics/underlined text.

[Grek]

Code:

echo [b]This text will be bold.[/b] ^ /mnt/lp-ai

produces a printout that says

Code:

[b]This text will be bold.[/b]

instead of

This text will be bold.

Ditto for italics, underlined and signatures. Oddly enough form underscores work just fine.